*BSD News Article 37348


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From: jkh@freefall.cdrom.com (Jordan K. Hubbard)
Newsgroups: comp.os.386bsd.misc,comp.os.386bsd.questions,comp.os.linux.development,comp.os.linux.misc,sci.electronics
Subject: Re: 16550 detection
Date: 02 Nov 1994 07:19:56 GMT
Organization: A poorly-installed InterNetNews site
Lines: 21
Message-ID: <JKH.94Nov1231956@freefall.cdrom.com>
References: <m0r2XH0-000MhFC@kitana>
NNTP-Posting-Host: freefall.cdrom.com
In-reply-to: kitana!sysop@caprica.com's message of 1 Nov 1994 22:35:12 -0600

In article <m0r2XH0-000MhFC@kitana> kitana!sysop@caprica.com (JL Gomez) writes:

   I've e-mail someone using a BOCA 2016 using 8 ports at 115K what their
   load was on the CPU.

   He replied 3% under Linux.  Says alot about the serial driver.

Or a lot about creative statistics.  8 ports doing 115.2K continuous.
With what?  A test rig, driving those ports at full data rate with
checksummed data?  With error checking on the Linux side to make sure
that this information was actually *getting* there and not simply
being tossed?

I'm not knocking Linux, but I'd distrust claims like this under FreeBSD
just as highly.  People are very often prone to make them after the
most dubious of testing procedures and even, distressingly, after
no testing procedures at all!  The old "well, it did that on 1 port,
it'll do that * 8 on 8 ports!  Yeah!  Gee, statistics sure are simple
when you cut all the corners off!" :-)

					Jordan